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Showing 1 to 15 of 15 for “"Rosenbrock"”.
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Monolithic and partitioned Rosenbrock-based time integration methods for dynamic substructure tests
… With these promises, the thesis adopts the Rosenbrock-based time integration methods for both dynamic simulations of complex systems and substructure tests, and in particular, focuses on the development of monolithic schemes with subcycling strategies for nonlinear cases and partitioned …
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Time Integration Methods for Large-scale Scientific Simulations
… where improvements can be made. To this end, Rosenbrock-Krylov methods, the first K-methods, are examined in a scalability study, and two new families of time integration methods are introduced: biorthogonal Rosenbrock-Krylov methods, and linearly implicit multistep methods. For the …
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Statistical Modeling of Simulation Errors and Their Reduction via Response Surface Techniques
… using GENESIS is considered along with the Rosenbrock test problem. A grid converge study is performed to estimate the order of the discretization error in the lift coefficient (CL) of the HSCT calculated from WINGDES. A response surface (RS) model using several mesh sizes is applied to …
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Detecting, locating and sizing leaks in gas-filled pipes using acoustical measurements
… leaks. Results are presented showing that the Rosenbrock optimisation algorithm provides predictions of hole sizes and locations which are in good agreement with their actual values. The success of the Rosenbrock optimisation algorithm is attributed to function minimisation techniques …
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Lightly-Implicit Methods for the Time Integration of Large Applications
… to allow for different, specific approximations. Rosenbrock-Krylov and exponential-Krylov methods are designed to permit low accuracy Krylov based approximations of the implicit terms, while maintaining full order of convergence. These methods are matrix free, have low memory requirements, and are …
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Comparação de dois métodos de otimização em modelos hidrológicos do tipo chuva-vazão
… methods. The first method is based on Rosenbrock Modified and the second one is based on Rosen’s Method which is a derivative-based optimization algorithm. For the comparative analysis the conceptual catchment rainfall-runoff, named SMAP modified, and the simple least squares criterion …
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Numerical solution for subsurface reservoir simulation
… some standard explicit and implicit methods, Rosenbrock schemes and exponential time stepping schemes for temporal discretization. We finally run some numerical simulations of advection-diffusion-reaction problems in a heterogeneous and an anisotropic porous media.
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Verhalten des pat-Gens in transgenem Raps und Mais im Freilandversuch Roggenstein
1. Im Rahmen dieser Arbeit wurden transgene und nicht-transgene Rapspflanzen auf ihre biochemischen Unterschiede untersucht. Weiterhin wurde das Abbauverhalten des künstlich eingefügten Gens im Vergleich zu zwei endogenen Kontrollgenen im Verlauf der Seneszenz, im verrottenden Pflanzenmaterial und …
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MATLODE: A MATLAB ODE Solver and Sensitivity Analysis Toolbox
… explicit Runge-Kutta, implicit Runge-Kutta, Rosenbrock, and single diagonally implicit Runge-Kutta. Each approach and family has its own strengths and weaknesses when applied to real world problems. MATLODE has a multitude of options that allows users to find the best approach for a wide …
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An improved data classification framework based on fractional particle swarm optimization
… functions through all 30 runs (Ackley = 0.2, Rosenbrock = 0.2, Bohachevsky = 9.36E-06, Easom = -0.95, Griewank = 0.01, Rastrigin = 2.5E-03, Schaffer = 1.31E-06, Schwefel 1.2 = 3.2E-05, Sphere = 8.36E-03, Step = 0). Furthermore, the proposed MOFPSO algorithm is hybridized with Back-Propagation …
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Multi-Agent LLMs for Adaptive Acquisition in Bayesian Optimization
… on three representative problems: (1) the Rosenbrock function (smooth with a narrow, curved valley), (2) hyperparameter tuning (costly evaluations; test accuracy as objective), and (3) robot pushing (discontinuous dynamics; positioning error objective). For each task, we run both single- …
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Control and Time Integration Algorithms for Real-Time Hybrid Simulation
… and analyzed. This method was based on the Rosenbrock (LSRT2) method and a prior inter-field parallel integrator–PLSRT2. The LSRT2 with different stage sizes, velocity projection and modified Jacobian evaluation were introduced to the algorithm in order to avoid and/or weaken the …
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Nonlinear fluid dynamics in complex geometries
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-09-01 without embargo terms
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Entwicklung optimierter Regelverfahren für Raumlufttechnische Anlagen mit Hilfe des Simulationssystems TRNSYS
… Regelsequenzen wurde mit Hilfe eines über das Rosenbrockverfahren und der dynamischen Optimierung ermittelten optimalen Vergleichsprozesses bewertet.
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Cultural Influences on Diagnostic, Treatment, and Research Perceptions of Parents Raising Children with Autism Spectrum Disorder: A Three-Article Dissertation
Background: Parents raising children with autism spectrum disorder (ASD) have many responsibilities, including advocating for their children’s needs, organizing their systems of care, and making decisions that best support their children’s development and the well-being of their family system. …